Home / 890,245.92-1,228,499.28-487,829.28

Finding the Fourth Proportional to 890,245.92, 1,228,499.28 and 487,829.28

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Solution

The fourth proportional to 890,245.92, 1,228,499.28 and 487,829.28 is: 673,182.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,245.92 : 1,228,499.28 = 487,829.28 : x
  2. Step 2: Convert to fraction form
    890,245.92/1,228,499.28 = 487,829.28/x
  3. Step 3: Cross multiply
    890,245.92x = 1,228,499.28 × 487,829.28
  4. Step 4: Simplify right side
    890,245.92x = 599,297,919,242.92
  5. Step 5: Solve for x
    x = 599,297,919,242.92/890,245.92
  6. Step 6: Final answer
    x = 673,182.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.